Finding the Fourth Proportional to 2,066.09, 2,851.20 and 1,181.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.09 : 2,851.20 = 1,181.91 : x
2. Step 2: Convert to fraction form
   2,066.09/2,851.20 = 1,181.91/x
3. Step 3: Cross multiply
   2,066.09x = 2,851.20 × 1,181.91
4. Step 4: Simplify right side
   2,066.09x = 3,369,861.79
5. Step 5: Solve for x
   x = 3,369,861.79/2,066.09
6. Step 6: Final answer
   x = 1,631.03